Online PHP editor | output for noTsM

@ 2022-05-27T04:19:09Z

<?php

$array = [
    ['invoice_id' => '72,', 'item' => 'SN00001'],
    ['invoice_id' => '73,', 'item' => 'SN00002'],
    ['invoice_id' => '73,', 'item' => 'SN00003'],
    ['invoice_id' => '73,', 'item' => 'SN00004'],
    ['invoice_id' => '74,', 'item' => 'SN00005'],
    ['invoice_id' => '74,', 'item' => 'SN00006']
];

$result = [];
foreach ($array as $row) {
    $result[$row['invoice_id']]['invoice_id'] = $row['invoice_id'];
    $result[$row['invoice_id']]['group'][] = $row;
}

var_export(array_values($result));

Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13: array ( 0 => array ( 'invoice_id' => '72,', 'group' => array ( 0 => array ( 'invoice_id' => '72,', 'item' => 'SN00001', ), ), ), 1 => array ( 'invoice_id' => '73,', 'group' => array ( 0 => array ( 'invoice_id' => '73,', 'item' => 'SN00002', ), 1 => array ( 'invoice_id' => '73,', 'item' => 'SN00003', ), 2 => array ( 'invoice_id' => '73,', 'item' => 'SN00004', ), ), ), 2 => array ( 'invoice_id' => '74,', 'group' => array ( 0 => array ( 'invoice_id' => '74,', 'item' => 'SN00005', ), 1 => array ( 'invoice_id' => '74,', 'item' => 'SN00006', ), ), ), )

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